So, just to be clear, if Jan wins tomorrow and Wednesday, she's in the clear as no.8 seed to play Zarte and the first qf right?

If Jan wins tomorrow, she's through. There would then be enough heats left for another person to beat her and get six wins, but not enough for this person to then lose a game too.

EDIT: But if she does win tomorrow, she isn't confirmed to be #8 seed yet because we don't know how many wins she'll ultimately get.

You mean that person can't get on the leaderboard if they lose a game?

That's correct -- Jan would have 6 wins after prevailing tomorrow, and if another person then took over on Wednesday and won 6, they would be required to carry over into Series 79, even if they outscored Jan.